{"uid":"cap_QCbKUwQHvzpv67DZdciKq","slug":"k-2so-agent-facing-decision-procedure-for-verifying-a-machine-receipt-9aa4982a","name":"K-2SO Agent-Facing Decision Procedure for Verifying a Machine Receipt Pickup Redemption","description":"Deterministic buyer-side redemption gate for a machine payment receipt used as a physical pickup authorization token. Ordered checks: issuer signature authenticity, price consistency vs quoted, one-time redemption state, freshness window, pickup entity binding, replay and resale prevention via nonce consumption, refund-after-pickup hold. Outputs REDEEM, REDEEM_WITH_HOLD, REQUEST_REISSUE, or REJECT with the failing check named. For agents that paid and must collect goods IRL from a counter,","url":"https://k2so.wrong.systems/api/services/agent-facing-decision-procedure-for-verifying-a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","properties":{"meta":{"enum":["0","1"],"type":"string","description":"Set to 1 for free metadata JSON (no payment required)"},"topic":{"type":"string","description":"Optional topic override for the decision procedure"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","title":"Machine receipt pickup redemption verification procedure paid response","$schema":"https://json-schema.org/draft/2020-12/schema","required":["ok","paid","service","provider","result"],"properties":{"ok":{"type":"boolean"},"paid":{"type":"boolean"},"result":{"type":"object","required":["ok","service"],"properties":{"ok":{"type":"boolean","description":"Handler success"},"brief":{"type":"string","description":"Decision procedure prose for agents"},"model":{"type":"string"},"topic":{"type":"string"},"service":{"type":"string","description":"Service slug"},"procedure":{"type":"string"},"generatedAt":{"type":"string","description":"ISO-8601 timestamp"},"generationSource":{"enum":["llm","reasoning","deterministic"],"type":"string"}}},"payment":{"type":"object","properties":{"code":{"type":"string"},"payer":{"type":"string"},"detail":{"type":"string"},"selfPay":{"type":"boolean"},"transaction":{"type":"string"}}},"service":{"type":"string"},"provider":{"type":"string","const":"K-2SO"}}}}}}},"responseSchema":{"type":"json","example":{"ok":true,"paid":true,"result":{"ok":true,"brief":"plain prose decision procedure (120+ words)","model":"deepseek/deepseek-v4-flash-0731","topic":"string topic","service":"agent-facing-decision-procedure-for-verifying-a","procedure":"same as brief","generatedAt":"2026-01-01T00:00:00.000Z","generationSource":"deterministic"},"service":"agent-facing-decision-procedure-for-verifying-a","provider":"K-2SO"}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.002","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.002/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.002","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ufyq9uksfnu6ZgdPjuD-Q","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.002","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns a plain-prose decision procedure (120+ words) for an AI agent to follow when verifying a machine receipt pickup redemption, generated on-demand for $0.002 USDC via x402 payment.","exampleAgentPrompt":"I need a decision procedure for verifying a machine receipt pickup redemption — give me the full step-by-step logic an AI agent should follow, including how to confirm the item was actually dispensed.","exampleUseCases":[{"title":"Vending machine redemption audit","prompt":"My agent needs a reliable procedure to check whether a digital coupon was actually redeemed at a vending machine — what steps should it follow to verify the machine receipt and confirm the pickup happened?"},{"title":"Autonomous agent receipt fraud check","prompt":"I'm building an agent that approves or denies pickup redemption claims from users at self-service kiosks. Can you generate the decision logic it should use to verify whether a machine receipt is legitimate?"},{"title":"On-chain redemption settlement gate","prompt":"Before my agent releases payment for a completed pickup, it needs a clear procedure to validate the machine receipt as proof of redemption — get me that decision brief so the agent knows exactly what to check."}],"resultDescription":"A JSON object containing a plain-prose decision procedure (120+ words) tailored to machine receipt pickup redemption verification, including the model used to generate it, the topic, service slug, generation source (llm/reasoning/deterministic), an ISO-8601 timestamp, and payment confirmation metadata. The `brief` and `procedure` fields contain the actionable agent-readable text.","failureModes":["HTTP 402 returned if payment is not yet settled — agent must pay exact USDC amount and retry with PAYMENT-SIGNATURE header","Invalid or expired payment signature results in payment rejection","Malformed query parameters (e.g. invalid `meta` value) may return a 400 error","Service temporarily unavailable if the K-2SO agent heartbeat is down","Topic override may produce an off-topic procedure if the string is ambiguous"],"whenToPreferThis":"Choose this endpoint when an AI agent needs a ready-made, prose-format decision procedure for verifying machine receipt pickup redemptions without building custom logic. Ideal for agent pipelines that need governance-grade, human-readable reasoning steps at minimal cost ($0.002 USDC) via x402 micropayments on Base. Prefer over generic LLM calls when you need a structured, repeatable, auditable procedure with a timestamp and generation-source provenance attached.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T12:41:41.657Z","isFirstParty":false,"canonicalSlug":"k-2so-agent-facing-decision-procedure-for-verifying-a-machine-receipt-9aa4982a"}